Mr. Ren Yisheng entered the Ministry of Foreign Affairs in 1986 upon graduation from university.He has worked in the Chinese Liaison Office in Kaesong, D.P.R. Korea, Embassy of China in the Republic of Singapore, Permanent Mission of China to the United Nations Office at Geneva and Other International Organizations in Switzerland,Permanent Mission of China to the United Nations respectively.He also has work experiences in the Department of Personnel and the Department of International Organizations and Conferences of the Foreign Ministry.

He has successively held the ranks or posts of Attaché, Third Secretary, Second Secretary, First Secretary, Director, Counselor and Minister Counselor.